Fairchild NC7SB3257 AC Electrical Characteristics, Capacitance Note, Symbol, Parameter, Number

NC7SB3257

AC Electrical Characteristics

				TA = − 40° C to + 85° C
Symbol	Parameter	VCC		CL =	50 pF, RU =	RD = 500Ω	Units		Conditions	Figure
		(V)		Min	Typ	Max				Number
tPHL	Propagation Delay Bus to Bus	4.0 −	55			0.25	ns	VI =	OPEN	Figures
tPLH	(Note 6)									1, 2
tPZL	Output Enable Time	4.5 −	5.5	1.8		6.5	ns	VI =	7V for tPZL	Figures
tPZH		4.0		1.8		7.3		VI =	0V for tPZH	1, 2
tPLZ	Output Disable Time	4.5 −	5.5	0.8		4.7		VI =	7V for tPLZ	Figures
tPHZ		4.0		0.8		5.3		VI =	0V for tPHZ	1, 2
tB-M	Break Before Make Time	4.5 −	5.5	0.5			ns			Figure 3
	(Note 7)	4.0		0.5

Note 6: This parameter is guaranteed by design but not tested. The bus switch contributes no propagation delay other than the RC delay of the On Resis- tance of the switch and the 50 pF load capacitance, when driven by an ideal voltage source (zero output impedance).

Note 7: Guaranteed by design.

Capacitance (Note 8)

Symbol	Parameter	Typ	Max	Units	Conditions
CIN	Control Pin Input Capacitance	2.3		pF	VCC =	0V
CIO-B	B Port OFF Capacitance	5.7		pF	VCC =	5.0V
CIO-A	A Port ON Capacitance	16		pF	VCC =	5.0V

Note 8: Capacitance is characterized but not tested.

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